DE2236304A1 - Verfahren zur gewinnung von reinem hydrochinon - Google Patents
Verfahren zur gewinnung von reinem hydrochinonInfo
- Publication number
- DE2236304A1 DE2236304A1 DE19722236304 DE2236304A DE2236304A1 DE 2236304 A1 DE2236304 A1 DE 2236304A1 DE 19722236304 DE19722236304 DE 19722236304 DE 2236304 A DE2236304 A DE 2236304A DE 2236304 A1 DE2236304 A1 DE 2236304A1
- Authority
- DE
- Germany
- Prior art keywords
- hydroquinone
- propellant
- distillation
- water
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 title claims description 63
- 238000000034 method Methods 0.000 title claims description 11
- 238000011084 recovery Methods 0.000 title 1
- 239000003380 propellant Substances 0.000 claims description 19
- 238000004821 distillation Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 4
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical group C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004604 Blowing Agent Substances 0.000 claims description 3
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- 239000012043 crude product Substances 0.000 claims 1
- -1 dimethyl diphenyl ether Chemical compound 0.000 claims 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
- 238000000859 sublimation Methods 0.000 description 4
- 230000008022 sublimation Effects 0.000 description 4
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000005605 benzo group Chemical group 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
- C07C37/74—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by distillation
- C07C37/80—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by distillation by extractive distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722236304 DE2236304A1 (de) | 1972-07-24 | 1972-07-24 | Verfahren zur gewinnung von reinem hydrochinon |
| FR7327089A FR2193805A1 (en) | 1972-07-24 | 1973-07-24 | Distillative prodn of pure hydroquinone - avoiding crystallisation of prod on cool surfaces which clogs equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722236304 DE2236304A1 (de) | 1972-07-24 | 1972-07-24 | Verfahren zur gewinnung von reinem hydrochinon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2236304A1 true DE2236304A1 (de) | 1974-02-14 |
Family
ID=5851537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722236304 Pending DE2236304A1 (de) | 1972-07-24 | 1972-07-24 | Verfahren zur gewinnung von reinem hydrochinon |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE2236304A1 (enExample) |
| FR (1) | FR2193805A1 (enExample) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1912628A (en) * | 1931-09-04 | 1933-06-06 | Dow Chemical Co | Purification of dihydric phenols |
-
1972
- 1972-07-24 DE DE19722236304 patent/DE2236304A1/de active Pending
-
1973
- 1973-07-24 FR FR7327089A patent/FR2193805A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2193805A1 (en) | 1974-02-22 |
| FR2193805B1 (enExample) | 1977-05-13 |
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